Optical Parameters of Cap-lamp and Their Technical Requirements Interpretation

On the basis of standards, including GB7957.2-2009, MT1162.1-2011, MT/T1092-2008 and MT927-2004, combined with the white LED light-emitting mechanism, human visual characteristics and the actual situation of current LED miner's lamp, the paper interpreted and evaluated optical parameters including irritation angle, illumination, correlated color temperature, color rendering index and lighting uniformity of the cap-lamp to help the enterprises and designers to better understand the technical requirements of the relevant parameters.